290  
FZUS54 KHGX 172036  
CWFHGX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
336 PM CDT SAT AUG 17 2019  
 
UPPER TEXAS COASTAL WATERS FROM HIGH ISLAND TO THE MATAGORDA SHIP  
CHANNEL OUT 60 NAUTICAL MILES INCLUDING GALVESTON AND MATAGORDA BAYS  
 
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST  
1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE  
HIGHEST 10 PERCENT OF THE WAVES.  
 
GMZ300-180900-  
SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60  
NAUTICAL MILES INCLUDING GALVESTON AND MATAGORDA BAYS  
336 PM CDT SAT AUG 17 2019  
   
SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM
 
 
A LIGHT TO OCCASIONALLY MODERATE ONSHORE FLOW WITH SLIGHTLY HIGHER  
WIND SPEEDS DURING THE OVERNIGHT AND EARLY MORNING HOURS. WINDS MAY  
BECOME GUSTY AND ERRATIC NEAR ANY THUNDERSTORMS THAT DO FORM. SEAS  
WILL GENERALLY BE 2 FEET OR LESS TODAY, BUT WILL BE GRADUALLY  
INCREASING TO AROUND 4 FEET LATE TONIGHT AND SUNDAY. HIGH PRESSURE  
BUILDING INTO THE REGION THROUGH NEXT WEEK WILL BRING MORE  
RELATIVELY QUIET WEATHER.  
 

 
 
GMZ335-180900-  
GALVESTON BAY-  
336 PM CDT SAT AUG 17 2019  
   
TONIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE.    
SUNDAY
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY CHOPPY.  
A SLIGHT CHANCE OF SHOWERS IN THE MORNING. A SLIGHT CHANCE OF  
THUNDERSTORMS. A CHANCE OF SHOWERS IN THE AFTERNOON.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY.    
MONDAY
 
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. SHOWERS  
LIKELY IN THE MORNING. A CHANCE OF THUNDERSTORMS. A CHANCE OF  
SHOWERS IN THE AFTERNOON.    
MONDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS  
AFTER MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST  
AFTER MIDNIGHT. BAY WATERS SMOOTH. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH IN THE  
AFTERNOON. BAY WATERS SMOOTH. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS BECOMING SOUTHWEST  
AFTER MIDNIGHT. BAY WATERS SMOOTH TO SLIGHTLY CHOPPY BECOMING  
SMOOTH AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT.    
THURSDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS BECOMING SOUTHEAST IN  
THE AFTERNOON. BAY WATERS SMOOTH. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A  
SLIGHT CHANCE OF SHOWERS.  
 

 
 
GMZ330-180900-  
MATAGORDA BAY-  
336 PM CDT SAT AUG 17 2019  
   
TONIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE.    
SUNDAY
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY CHOPPY.   
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY CHOPPY.  
A SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. A CHANCE OF  
SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
MONDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS  
IN THE AFTERNOON. BAY WATERS SMOOTH BECOMING SLIGHTLY CHOPPY IN  
THE AFTERNOON. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. BAY WATERS SMOOTH. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS  
SLIGHTLY CHOPPY.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A  
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH  
5 TO 10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY BECOMING  
SMOOTH AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS.  
 

 
 
GMZ355-180900-  
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-  
336 PM CDT SAT AUG 17 2019  
   
TONIGHT
 
SOUTH WINDS AROUND 15 KNOTS. SEAS 2 TO 4 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE.    
SUNDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A SLIGHT  
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE  
MORNING AND EARLY AFTERNOON.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. SHOWERS  
LIKELY IN THE MORNING. A CHANCE OF THUNDERSTORMS. A CHANCE OF  
SHOWERS IN THE AFTERNOON.    
MONDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS  
AFTER MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A CHANCE  
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN A  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTH IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF THUNDERSTORMS IN THE  
MORNING. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON.    
WEDNESDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS BECOMING SOUTHWEST  
AFTER MIDNIGHT. SEAS 2 TO 3 FEET. A SLIGHT CHANCE OF SHOWERS IN  
THE EVENING, THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT.    
THURSDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN  
THE AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF THUNDERSTORMS IN THE  
MORNING. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON.    
THURSDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 FEET. A  
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.  
 

 
 
GMZ375-180900-  
WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM-  
336 PM CDT SAT AUG 17 2019  
   
TONIGHT
 
SOUTH WINDS AROUND 15 KNOTS. SEAS 2 TO 4 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE.    
SUNDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A SLIGHT  
CHANCE OF SHOWERS IN THE MORNING.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 FEET. A SLIGHT  
CHANCE OF SHOWERS AFTER MIDNIGHT.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A SLIGHT  
CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON. A CHANCE OF  
SHOWERS.    
MONDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS  
AFTER MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET. SHOWERS  
LIKELY IN THE MORNING. A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE  
OF SHOWERS IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN A  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.    
THURSDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF THUNDERSTORMS IN THE  
MORNING. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON.    
THURSDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 FEET. A  
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.  
 

 
 
GMZ370-180900-  
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO  
60 NM-  
336 PM CDT SAT AUG 17 2019  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TONIGHT
 
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET.    
SUNDAY
 
SOUTH WINDS 15 TO 20 KNOTS DECREASING TO 10 TO 15 KNOTS  
IN THE AFTERNOON. SEAS 4 FEET.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET WITH  
OCCASIONAL SEAS UP TO 6 FEET. A SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL LATE AFTERNOON. A CHANCE OF SHOWERS.    
MONDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 FEET. A SLIGHT  
CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET. A CHANCE  
OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 3 FEET. A CHANCE OF SHOWERS IN THE MORNING. A  
SLIGHT CHANCE OF THUNDERSTORMS. A SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 FEET. A  
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.    
THURSDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 FEET. A  
CHANCE OF SHOWERS.  
 

 
 
GMZ350-180900-  
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT  
20 NM-  
336 PM CDT SAT AUG 17 2019  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TONIGHT
 
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET. A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS LATE.    
SUNDAY
 
SOUTH WINDS 15 TO 20 KNOTS DECREASING TO 10 TO 15 KNOTS  
IN THE AFTERNOON. SEAS 3 TO 4 FEET. A SLIGHT CHANCE OF SHOWERS IN  
THE MORNING.    
SUNDAY NIGHT
 
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE MORNING. A CHANCE OF SHOWERS. A  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
MONDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. A  
SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS  
AFTER MIDNIGHT.    
TUESDAY
 
SOUTH WINDS 10 TO 15 KNOTS DECREASING TO 5 TO 10 KNOTS  
IN THE AFTERNOON. SEAS 3 TO 4 FEET. A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.    
THURSDAY
 
SOUTH WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 FEET. A  
SLIGHT CHANCE OF SHOWERS.  
 

 
 
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